Effect of Accelerated Weathering on the Physical and Mechanical Properties of Natural - Fiber Thermoplastic CompositesUniversity of Wisconsin--Madison, 2002 - 282 pages |
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Page 31
... additives . Specimen durability was evaluated based on measurable changes in physical and mechanical properties including , chromaticity , flexural strength and modulus . Test methods where chosen to satisfy the objectives of evaluating ...
... additives . Specimen durability was evaluated based on measurable changes in physical and mechanical properties including , chromaticity , flexural strength and modulus . Test methods where chosen to satisfy the objectives of evaluating ...
Page 64
... additives ) . Formulation 2 consisted of HDPE with antioxidant , HALS and MAPE additives . Formulation 3 contained 50 % wood flour by weight and Formulation 4 , 50 % kenaf fiber by weight . Table 4.1 Phase II Test Matrix Polymer ...
... additives ) . Formulation 2 consisted of HDPE with antioxidant , HALS and MAPE additives . Formulation 3 contained 50 % wood flour by weight and Formulation 4 , 50 % kenaf fiber by weight . Table 4.1 Phase II Test Matrix Polymer ...
Page 77
... additives after 1000 and 2000 hours of exposure but was less than Formulation 2 - additives at exposures greater than 2000 hours . After 2000 hours the modulus dropped significantly to 74 % and 85 % of the unexposed modulus when the ...
... additives after 1000 and 2000 hours of exposure but was less than Formulation 2 - additives at exposures greater than 2000 hours . After 2000 hours the modulus dropped significantly to 74 % and 85 % of the unexposed modulus when the ...
Common terms and phrases
Accelerated Weathering Additives antioxidant ASTM Change in Flexural chromaticity chromophores Coefficient of Variation color change Color Difference AE compatibilizer Composites with 0.25 compression side crystallinity degraded layer Depth of Degradation due to accelerated Effect of Accelerated Effect of Fungicide Effect of UV error bars equal exposed surface Exposure Figure Flexural Modulus flexural properties flexural strength Fungicide Gijsman HDPE 70 HDPE composites HDPE specimens hours of exposure hydroperoxides impact strength injection molded jute Kenaf lignin lignocellulosic materials matrix maximum load mechanical properties modulus for Formulation natural fibers natural weathering orientation outdoor oxidation oxygen Phase photodegradation photooxidation polymer Predicted Flexural Rabek radicals reactions reduced result roof panels show the effects sisal specimens exposed Stabilizer and Accelerated standard deviation strain strength for Formulation stress Table temperature tension side Thermoplastic Composites Total Color Difference unexposed modulus unexposed strength UV stabilizer values with error Visible Depth wavelengths Weathering on Flexural Wood Flour Composites Wood Flour Content